
class SingletonLazy{
    public static SingletonLazy instance=null;

    public static SingletonLazy getInstance(){
        Object locker1=new Object();
        synchronized (locker1){
            if(instance==null){
                instance=new SingletonLazy();
            }
        }
        return instance;
    }

    private SingletonLazy(){

    }
}

public class Demo2 {
    public static void main(String[] args) {
        SingletonLazy s1=SingletonLazy.getInstance();
        SingletonLazy s2=SingletonLazy.getInstance();
        System.out.println(s1==s2);
    }

}
